Home / 15,739.35-21,714.75-10,075.02

Finding the Fourth Proportional to 15,739.35, 21,714.75 and 10,075.02

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Solution

The fourth proportional to 15,739.35, 21,714.75 and 10,075.02 is: 13,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.35 : 21,714.75 = 10,075.02 : x
  2. Step 2: Convert to fraction form
    15,739.35/21,714.75 = 10,075.02/x
  3. Step 3: Cross multiply
    15,739.35x = 21,714.75 × 10,075.02
  4. Step 4: Simplify right side
    15,739.35x = 218,776,540.55
  5. Step 5: Solve for x
    x = 218,776,540.55/15,739.35
  6. Step 6: Final answer
    x = 13,899.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.